Badge for golf club head

ABSTRACT

The present disclosure concerns embodiments of a badge or insert for a golf club head that can eliminate undesired gaps between the insert and the peripheral sidewall of the cavity that receives the insert. In one embodiment, a golf club head comprises a main body comprising a cavity, which defines a central surface and an inner peripheral surface at least partially surrounding the central surface. An insert comprises a central portion and a deflectable portion coupled to and extending along a peripheral edge section of the central portion. The deflectable portion has a shape corresponding to and contacting a corresponding section of the inner peripheral surface of the cavity. The deflectable portion forms a press-fit engagement with the corresponding section of the inner peripheral surface of the cavity that retains the deflectable portion in a deflected state relative to the central portion.

CROSS-REFERENCE TO RELATED APPLICATION

The present application is a continuation of U.S. patent applicationSer. No. 13/717,518, filed Dec. 17, 2012, which is incorporated hereinby reference.

FIELD

The present disclosure concerns embodiments of a golf club head, and inparticular, embodiments of an improved badge insert for a golf clubhead.

BACKGROUND

Iron-type golf club heads typically include large cavities in their rearsurfaces. Typically, the position and overall size and shape of a cavityare selected to remove mass from that portion of the club head and/or toadjust the center of gravity of the club head. Manufacturers of golfclubs often place a badge or insert in the cavity for decorativepurposes and/or for indicating the manufacturer name, logo, trademark,or the like. In addition, a badge or insert may be used to achieve aperformance benefit, such as for vibration damping.

Due to variances in investment casting, the size of the cavity for anyparticular model can vary between different vendors that perform thecasting process and between club heads supplied from the same vendor. Asa result, badges are often designed to be undersized relative to thenominal size of the cavity so as not to interfere with the peripheralsidewall of the cavity and sometimes are installed offset toward oneside of the cavity. Unfortunately, this leaves unsightly gaps around theperiphery of the badge.

SUMMARY

The present disclosure concerns embodiments of a badge or insert thatcan eliminate undesired gaps between the insert and the peripheralsidewall of the cavity which can otherwise occur due to variances in theexact size of the cavity. The insert typically is installed in the rearsurface of an iron-type golf club head. Accordingly, the detaileddescription that follows describes embodiments of an insert installed inthe rear surface of an iron-type club head. However, the insert also canbe installed in a cavity formed in another portion of the club head(such as the front, heel, toe, upper, and/or lower portions of the clubhead) or in another type of club head (such as a driver or wood-typeclub head, a putter or wedge).

In one representative embodiment, a golf club head comprises a bodycomprising a face portion defining a striking face of the club head anda rear portion opposite the face portion. The rear portion includes acavity, which defines a rear inner surface substantially opposite thestriking face and an inner peripheral surface at least partiallysurrounding the rear inner surface. An insert is disposed in the cavity.The insert comprises a central portion and a peripheral edge portioncoupled to the central portion. At least a portion of the peripheraledge portion comprises a deflectable portion having a shapecorresponding to and contacting a corresponding section of the innerperipheral surface of the cavity, with the deflectable portion beingretained in a deflected state by contact with the corresponding sectionof the inner peripheral surface of the cavity.

In another representative embodiment, a golf club head comprises a mainbody comprising a cavity, which defines a central surface and an innerperipheral surface at least partially surrounding the central surface.An insert is disposed in the cavity. The insert comprises a centralportion and a deflectable portion coupled to and extending along aperipheral edge section of the central portion. The deflectable portionhas a shape corresponding to and contacting a corresponding section ofthe inner peripheral surface of the cavity. The deflectable portionforms a press-fit engagement with the corresponding section of the innerperipheral surface of the cavity that retains the deflectable portion ina deflected state relative to the central portion.

In another representative embodiment, a method of assembling a golf clubhead comprises providing a golf club head comprising a face portiondefining a striking face of the club head and a rear portion oppositethe face portion, the rear portion including a cavity, the cavitydefining a rear inner surface substantially opposite the striking faceand an inner peripheral surface at least partially surrounding the rearinner surface. The method further comprises providing an insertcomprising a central portion and a deflectable portion at leastpartially surrounding the central portion and corresponding to the shapeof a corresponding section of the inner peripheral surface of thecavity, the deflectable portion being in a non-deflected state that islarger than the corresponding section of the inner peripheral surface.The insert is then inserted into the cavity such that the deflectableportion contacts the corresponding section of the inner peripheralsurface of the cavity and moves to a deflected state relative to thecentral portion.

The foregoing and other objects, features, and advantages of theinvention will become more apparent from the following detaileddescription, which proceeds with reference to the accompanying figures.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an exemplary embodiment of an iron-typegolf club head having an insert installed in the rear portion of theclub head.

FIG. 2 is a cross-sectional view of the club head taken along line 2-2of FIG. 1.

FIG. 3 is a perspective, exploded view of the club head and the insertof FIG. 1.

FIG. 4 is a rear elevation view of the club head of FIG. 1, shown withthe insert removed for purposes of illustration.

FIG. 5 is an elevation view of the insert of FIG. 1, shown apart fromthe club head.

FIG. 6 is a cross-sectional view of a club head having anotherembodiment of an insert installed in the rear portion of the club head.

FIG. 7 is an elevation view of the insert of FIG. 6, shown apart fromthe club head.

FIG. 8 is a cross-sectional view of the insert taken along line 8-8 ofFIG. 7.

DETAILED DESCRIPTION

Referring first to FIGS. 1-4, there is shown an iron-type golf club head10, according to one embodiment. The club head 10 comprises a main body12 having an upper portion 14, a lower portion 16, a toe portion 18, aheel portion 20, and a hosel 22 extending from the area where the heelportion 20 joins the upper portion 14. A shaft 24 can be joined to thehosel 22 to form an assembled golf club. The lower end portion of theshaft 24 extends into the hosel 22 and is secured in place relative tothe main body 12 using conventional techniques or mechanisms.

The main body 12 also includes a face portion 26 defining a frontstriking face 28 for the club head and a rear portion 30 opposite theface portion 26. The rear portion 30 includes a recessed portion, orcavity, 32. As best shown in FIG. 3, the cavity 32 has a main innersurface 44 and an inner peripheral surface 46 surrounding the main innersurface. Disposed inside the cavity 32 is an insert 34 (also referred toas a “badge,” “badge insert,” or “medallion”). The insert 34 has anexposed outer surface 36 that is visible to a user. Words, logos,designs, graphics, trademarks, and other types of visible indicia may beprinted or formed on the outer surface 36 for aesthetic or decorativepurposes. In some embodiments, the insert 34 may also comprise materialsor be constructed in a manner to provide a performance benefit, such asvibration damping.

In the illustrated embodiment, as best shown in FIG. 2, a lower portion48 of the cavity 32 is formed between the face portion 26 and a lowerrear portion 50 of the club head. Thus, as can be seen, the insert 34can be sized such that it extends slightly below an upper ledge 52 ofthe lower rear portion 50. As shown in FIG. 2, there can be asubstantial gap between the inner peripheral surface 46 and the insert34 within the lower cavity portion 48. The insert 34 need not be sizedto cover this gap since it is hidden from view by the lower rear portion50.

Referring to FIG. 5, the insert 34 comprises a central portion 38 and anouter peripheral portion 40 coupled to and extending along theperipheral edge of the central portion 38. At least a portion of theperipheral portion 40 of the insert comprises a deflectable portion 42that has a shape corresponding to and contacting a corresponding section56 of the inner peripheral surface 46 of the cavity 32. In theillustrated embodiment, the deflectable portion 42 comprises the extentof the peripheral portion 40 encircled by dashed line 54 (FIG. 5) andthe corresponding section 56 of the inner peripheral surface 46comprises the extent of the peripheral surface 46 encircled by dashedline 58. As can be seen, the deflectable portion 42 extends along theperipheral upper edge and the peripheral heel and toe edges of thecentral portion but not along the peripheral lower edge of the centralportion. Thus, in the illustrated embodiment, the lower part of theperipheral portion 40 that extends into the lower cavity portion 48 (andwhich is mostly hidden from view), need not be part of the deflectableportion because it is spaced from the peripheral inner surface 46 withinthe lower cavity portion 48 (FIG. 2).

The deflectable portion 42 is configured to be slightly oversizedrelative to the corresponding section 56 of the inner peripheral surface46 but is deflectable relative to the central portion 38 to allow thedeflectable portion 42 to conform to the corresponding section 56 as theinsert is press-fitted into the cavity. In this manner, the deflectableportion 42 can contact the corresponding section 56 continuously alongthe entire extent of the deflectable portion 42 so that there are novisible gaps between the deflectable portion and the inner peripheralsurface 46 of the cavity. Thus, if the exact size of the cavity for aparticular model varies between club heads, such as due to investmentcasting variances or other manufacturing limitations, the insert 34 canbe installed in the cavity without any visible gaps.

As shown in FIG. 2, an inner surface 68 of the insert can be adhesivelysecured to the inner surface 44 of the cavity, such as with a layer ofdouble-sided tape 60, to ensure that insert remains in place within thecavity during normal use of the golf club. Alternatively, the insert 34can be secured to the inner surface 44 of the cavity with epoxy oranother suitable adhesive or glue.

As best shown in FIG. 2, the deflectable portion 42 in the illustratedconfiguration is coupled to the peripheral edge of the central portion38 by a living hinge 62. The hinge 62 allows the deflectable portion 42to conform to the inner peripheral surface 46 when the insert is pressedinto the cavity 32. The hinge 62 can be formed by machining, injectionmolding, or otherwise forming a thinned region to reduce thecross-sectional thickness of the insert at or near the location at whichthe peripheral edge of the central portion 38 is coupled to the livinghinge 62, such as a V-shaped gap 64 along the outer peripheral surfaceof the insert. In particular embodiments, the insert 34 can be a unitarypiece of material that is molded, cast, machined or otherwise formed tohave a central portion 38 and a raised peripheral portion 40 having athickness greater than the central portion. The peripheral portion 40(or at least the portion that will form the deflectable portion 42) isformed such that it is slightly larger than the opening defined by thecorresponding section 56 of the inner peripheral surface. The gap 64 canthen be formed in the outer peripheral surface of the insert to form thedeflectable portion 42 and the hinge 62. The outer peripheral edge 66 ofthe central portion can be formed, or trimmed (if needed) so that it canfit within the cavity without contacting the inner peripheral surface.In the illustrated embodiment, the gap 64 is not formed in the portionof the insert 34 that extends into the lower cavity portion 48. Thus,the lower peripheral portion 40 of the insert that extends into thelower cavity portion 48 is simply defined by a raised portion of theinsert. However, in other embodiments, the entire extent of theperipheral portion 40 can be a deflectable portion 42 (i.e., the hinge62 can extend completely around the outer peripheral surface of theinsert).

When the insert 34 is apart from the club head 10, the deflectableportion 42 is in a non-deflected state having a larger peripheral shapethan the opening defined by the corresponding section 56 of the cavity.When the insert 34 is pressed into the cavity, the deflectable portion42 contacts the corresponding section 56 of the inner peripheral surface46 and is deflected inwardly slightly relative to the central portion 38to assume a deflected state while the central portion 38 is not deformedor deflected by the installation process.

Any of various suitable materials can be used to form the centralportion 38 and the peripheral portion 40. For example, in someembodiments, the central portion 38 may comprise a metal (e.g.,aluminum, steel, nickel, cobalt, titanium, or alloys including thesematerials) and/or one or more of various polymers (e.g., ABS plastic(acrylonitrile—butadiene—styrene), nylon, and/or polycarbonate). In someembodiments, the peripheral portion 40 may comprise a metal (e.g.,aluminum, nickel, cobalt, steel, titanium, or alloys including thesematerials), one or more of various polymers (e.g., ABS plastic, nylon,polycarbonate, or combinations of these materials), and/or an elastomeror a viscoelastic material, such as rubber or any of various syntheticelastomers, such as polyurethane, a thermoplastic or thermoset materialpolymer, or silicone or combinations of these materials.

In alternative embodiments, the entire cavity 32 may be visible, or itmay be otherwise preferable to provide an insert 34 that is coextensivewith the entire cavity 32. In such cases, the deflectable portion 42 cancomprise the entire extent of the peripheral portion 40, such that thedeflectable portion 42 contacts the entire inner peripheral surface 46,thereby eliminating any gaps between the insert and the inner peripheralsurface 46 of the cavity.

FIGS. 6-8 illustrate an insert 100, according to another embodiment,installed within the cavity 32 of the club head. The insert 100comprises a central portion 102 and a deflectable peripheral portion 104surrounding the outer peripheral edge of the central portion 102. Thecentral portion 102 comprises an outer, exposed surface 106 on whichthere can be provided various indicia, logos, designs, and the like. Theinsert has an inner surface 108 that can be secured to the inner surface44 of the cavity, such as with a piece of double-sided tape 110 or asuitable adhesive, such as epoxy.

The central portion 102 comprises a first material (or a firstcombination of multiple materials) and the peripheral portion 104comprises a second material that is relatively more pliable and/ordeformable than the first material. Like the insert 34 described above,the peripheral portion 104 of insert 100 corresponds to and contacts acorresponding section 56 of the inner peripheral surface 46 of thecavity. When the insert 100 is apart from club head 10, the peripheralportion 104 is in a non-deformed, non-deflected state that is slightlylarger than the opening defined by the corresponding section 56 of theinner peripheral surface 46 of the cavity. When pressed into the cavity,the peripheral portion 104 can conform to the inner peripheral surface46 and can contact the inner peripheral surface 46 continuously alongthe entire extent of the corresponding section 56 without any visiblegaps between the peripheral portion 104 and the corresponding section56. In other words, the peripheral portion 104 that comes in contactwith the corresponding section 56 of the inner peripheral surface 46moves to a deformed or deflected state in continuous contact with thatportion of the inner peripheral surface 46 while the central portion 102is not deflected or deformed by the installation process.

In particular embodiments, the peripheral portion 104 is formed from anelastomer or a viscoelastic material, such as rubber or any of varioussynthetic elastomers, such as polyurethane, a thermoplastic or thermosetmaterial polymer, or silicone. The central portion 102 is formed from amaterial that is firmer than the peripheral portion 104. Desirably, thematerial for the central portion 102 is selected such that the centralportion 102 does not deflect or deform when the insert 100 is insertedinto the cavity 32. In particular embodiments, for example, the centralportion can be formed from any suitable metal (such as aluminum, steel,nickel, cobalt, titanium, or alloys including these materials) or apolymer that is relatively harder than the material used to form theperipheral portion. For example, relatively harder polymers that can beused to form the central portion 102 include ABS plastic, nylon, and/orpolycarbonate.

The peripheral portion 104 can be joined to the central portion 102using any of various suitable techniques or mechanisms. For example, theperipheral portion 104 can be co-molded with and/or around the centralportion 102. Alternatively, the peripheral portion 104 can be joined tothe central portion 102 using an adhesive, welding, or by aninterference fit between the two components.

In the illustrated embodiment, the entire peripheral portion 104 isdeflectable, although this not need be the case. Since the lower part ofthe insert 100 extends into the lower cavity portion 48 and does notcontact the adjacent portion of peripheral surface 46 (as shown in FIG.6), this part of the insert need not include a deflectable peripheralportion. Of course, in embodiments where the entire cavity in the rearof the club head is visible, or where it may be otherwise preferable toprovide an insert 100 that is coextensive with the entire cavity 32, itwould be beneficial to provide a deflectable peripheral portion aroundthe entire periphery of the insert.

The disclosed embodiments can be adapted for inserts that are installedin cavities and/or pockets located in other portions of a club head andfor inserts that are installed in club heads other than irons, such aswood-type club heads (e.g., drivers), putters and wedges. In certainembodiments, for example, an insert having a deformable or deflectableperipheral portion as discussed above can be installed in a cavitylocated at any portion of any type of club head (e.g., a cavity formedin the upper portion, the lower portion, the toe portion, the heelportion, the rear portion, and/or the front portion of a club head). Inone specific implementation, an insert having a deformable ordeflectable peripheral portion in installed in the front face portion ofa club head and forms the striking surface of the club head.

Furthermore, inserts as disclosed herein can also be adapted to beinstalled in products other than golf club heads, such as various typesof sporting goods, household appliances, machinery, to name just a few.Thus, the embodiments of inserts disclosed herein can be installed in acavity that is formed in just about any product or device.

General Considerations

For purposes of this description, certain aspects, advantages, and novelfeatures of the embodiments of this disclosure are described herein. Thedisclosed methods, apparatuses, and systems should not be construed aslimiting in any way. Instead, the present disclosure is directed towardall novel and nonobvious features and aspects of the various disclosedembodiments, alone and in various combinations and sub-combinations withone another. The methods, apparatuses, and systems are not limited toany specific aspect or feature or combination thereof, nor do thedisclosed embodiments require that any one or more specific advantagesbe present or problems be solved.

Although the operations of some of the disclosed methods are describedin a particular, sequential order for convenient presentation, it shouldbe understood that this manner of description encompasses rearrangement,unless a particular ordering is required by specific language. Forexample, operations described sequentially may in some cases berearranged or performed concurrently. Moreover, for the sake ofsimplicity, the attached figures may not show the various ways in whichthe disclosed methods can be used in conjunction with other methods. Asused herein, the terms “a”, “an” and “at least one” encompass one ormore of the specified element. That is, if two of a particular elementare present, one of these elements is also present and thus “an” elementis present. The terms “a plurality of” and “plural” mean two or more ofthe specified element.

As used herein, the term “and/or” used between the last two of a list ofelements means any one or more of the listed elements. For example, thephrase “A, B, and/or C” means “A,” “B,” “C,” “A and B,” “A and C,” “Band C” or “A, B and C.”

As used herein, the term “coupled” generally means physically coupled orlinked and does not exclude the presence of intermediate elementsbetween the coupled items absent specific contrary language.

In view of the many possible embodiments to which the principles of thedisclosed invention may be applied, it should be recognized that theillustrated embodiments are only preferred examples of the invention andshould not be taken as limiting the scope of the invention. Rather, thescope of the invention is defined by the following claims. We thereforeclaim as our invention all that comes within the scope and spirit ofthese claims.

We claim:
 1. A golf club head comprising: a body comprising a faceportion defining a striking face of the golf club head and a rearportion opposite the face portion, the rear portion including a cavityformed in an external surface of the rear portion, the cavity defining arear inner surface substantially opposite the striking face and an innerperipheral surface at least partially surrounding the rear innersurface; and an insert disposed in the cavity and visible during use ofthe golf club head, the insert comprising a central portion and aperipheral edge portion coupled to the central portion, the peripheraledge portion comprising a deflectable portion having a shapecorresponding to and engaging a corresponding section of the innerperipheral surface of the cavity, the engagement of the deflectableportion with the corresponding section of the inner peripheral surfaceof the cavity causing the deflectable portion to deform to a deflectedshape and retaining the deflected shape of the deflectable portion;wherein the deflectable portion is coupled to the central portion via ahinged connection located at the inner peripheral surface and thedeflectable portion is bent relative to the central portion at thehinged connection, wherein the deflectable portion has a greaterthickness than the central portion adjacent the hinged connection. 2.The golf club head of claim 1, wherein the central portion of the insertis not deformed.
 3. The golf club head of claim 1, wherein thedeflectable portion comprises less than the entire extent of theperipheral portion.
 4. The golf club head of claim 1, wherein thedeflectable portion extends around the entire periphery of the centralportion.
 5. The golf club head of claim 1, wherein the hinged connectioncomprises a living hinge formed between the deflectable peripheralportion and the central portion.
 6. The golf club head of claim 1,wherein the deflectable portion comprises an elastomeric material thatis elastically deformed into the deflected state by contact with thecorresponding section of the inner peripheral surface of the cavity. 7.The golf club head of claim 1, wherein the central portion has an innersurface that is adhesively secured to the rear inner surface of thecavity.
 8. The golf club head of claim 1, wherein the central portioncomprises a peripheral upper edge, a peripheral lower edge, andperipheral heel and toe edges extending between respective ends of theperipheral upper and lower edges, the deflectable portion extendingalong the peripheral upper edge and at least partially along theperipheral heel and toe edges.
 9. The golf club head of claim 1, whereinthe external surface is an external surface of the club head in anassembled state.
 10. The golf club head of claim 1, wherein the body isdirectly attached to a hosel.
 11. A golf club head comprising: a bodycomprising a face portion defining a striking face of the golf club headand a rear portion opposite the face portion, the rear portion includinga cavity formed in an external surface of the rear portion, the cavitydefining a rear inner surface substantially opposite the striking faceand an inner peripheral surface at least partially surrounding the rearinner surface; and an insert disposed in the cavity and visible duringuse of the golf club head, the insert comprising a central portion and aperipheral edge portion coupled to the central portion, the peripheraledge portion comprising a deflectable portion having a shapecorresponding to and engaging a corresponding section of the innerperipheral surface of the cavity, the engagement of the deflectableportion with the corresponding section of the inner peripheral surfaceof the cavity causing the deflectable portion to deform to a deflectedshape and retaining the deflected shape of the deflectable portion;wherein the deflectable portion is coupled to the central portion via ahinged connection located at the inner peripheral surface and thedeflectable portion is bent relative to the central portion at thehinged connection; wherein the hinged connection formed by a notch inthe insert facing the inner peripheral surface.
 12. A golf club headcomprising: a body comprising a face portion defining a striking face ofthe golf club head and a rear portion opposite the face portion, therear portion including a cavity formed in an external surface of therear portion, the cavity defining a rear inner surface substantiallyopposite the striking face and an inner peripheral surface at leastpartially surrounding the rear inner surface; and an insert disposed inthe cavity and visible during use of the golf club head, the insertcomprising a central portion and a peripheral edge portion coupled tothe central portion, the peripheral edge portion comprising adeflectable portion having a shape corresponding to and engaging acorresponding section of the inner peripheral surface of the cavity, theengagement of the deflectable portion with the corresponding section ofthe inner peripheral surface of the cavity causing the deflectableportion to deform to a deflected shape and retaining the deflected shapeof the deflectable portion; wherein the deflectable portion comprises anelastomeric material that is elastically deformed into the deflectedstate by contact with the corresponding section of the inner peripheralsurface of the cavity wherein the central portion is comprised entirelyof a first material and the deflectable portion is comprised entirely ofa second material, the first material being relatively harder than thesecond material.
 13. A golf club head comprising: a main body comprisinga cavity in an external surface thereof, the cavity defining a centralsurface and an inner peripheral surface at least partially surroundingthe central surface; and an insert disposed in the cavity and visibleduring use of the golf club head, the insert comprising a centralportion and a deflectable portion coupled to and extending along aperipheral edge section of the central portion, the deflectable portionhaving a shape corresponding to and contacting a corresponding sectionof the inner peripheral surface of the cavity, the deflectable portionengaging with the corresponding section of the inner peripheral surfaceof the cavity, the engagement of the deflectable portion with thecorresponding section of the inner peripheral surface of the cavitycausing the deflectable portion to bend relative to the central portionto a deflected shape along an axis adjacent the inner peripheral surfaceand retaining the deflected shape of the deflectable portion, whereinthe axis is parallel to a striking face of the main body.
 14. The golfclub head of claim 13, wherein the body comprises a face portiondefining the striking face of the club head and a rear portion oppositethe face portion, wherein the cavity is formed in a rear surface of therear portion of the main body and the central surface of the cavity issubstantially opposite the striking face.
 15. The golf club head ofclaim 14, wherein the club head comprises an iron-type club head.
 16. Agolf club head comprising: a main body comprising a cavity in anexternal surface thereof, the cavity defining a central surface and aninner peripheral surface at least partially surrounding the centralsurface; and an insert disposed in the cavity and visible during use ofthe golf club head, the insert comprising a central portion and adeflectable portion coupled to and extending along a peripheral edgesection of the central portion, the deflectable portion having a shapecorresponding to and contacting a corresponding section of the innerperipheral surface of the cavity, the deflectable portion engaging withthe corresponding section of the inner peripheral surface of the cavity,the engagement of the deflectable portion with the corresponding sectionof the inner peripheral surface of the cavity causing the deflectableportion to bend relative to the central portion to a deflected shapealong an axis adjacent the inner peripheral surface and retaining thedeflected shape of the deflectable portion; wherein the deflectableportion is coupled to the central portion by a living hinge formed by anotch in the deflectable portion facing the inner peripheral surface.17. A golf club head comprising: a main body comprising a cavity in anexternal surface thereof, the cavity defining a central surface and aninner peripheral surface at least partially surrounding the centralsurface; and an insert disposed in the cavity and visible during use ofthe golf club head, the insert comprising a central portion and adeflectable portion coupled to and extending along a peripheral edgesection of the central portion, the deflectable portion having a shapecorresponding to and contacting a corresponding section of the innerperipheral surface of the cavity, the deflectable portion engaging withthe corresponding section of the inner peripheral surface of the cavity,the engagement of the deflectable portion with the corresponding sectionof the inner peripheral surface of the cavity causing the deflectableportion to deform to a deflected shape and retaining the deflected shapeof the deflectable portion wherein the deflectable portion is comprisedentirely of an elastomeric material and the central portion is comprisedentirely of a material that is relatively less elastic than theelastomeric material of the deflectable portion.
 18. A method ofassembling a golf club head comprising: providing a golf club headcomprising a face portion defining a striking face of the club head anda rear portion opposite the face portion, the rear portion including acavity formed in an external surface of the rear portion, the cavitydefining a rear inner surface substantially opposite the striking faceand an inner peripheral surface at least partially surrounding the rearinner surface; providing an insert comprising a central portion and adeflectable portion at least partially surrounding the central portionand corresponding to the shape of a corresponding section of the innerperipheral surface of the cavity, the deflectable portion being in anon-deflected state that is larger than the corresponding section of theinner peripheral surface; and inserting the insert into the cavity suchthat the deflectable portion contacts the corresponding section of theinner peripheral surface of the cavity and moves to a deflected staterelative to the central portion, wherein the insert is positioned in thecavity such that it is visible during use of the golf club; whereinengagement of the deflectable portion with the corresponding section ofthe inner peripheral surface of the cavity causes the deflectableportion to deform to a deflected shape and retains the deflected shapeof the deflectable portion; wherein the deflectable portion is coupledto the central portion via a hinged connection, which is located at thecorresponding section of the inner peripheral surface after the insertis inserted into the cavity, and wherein the engagement of thedeflectable portion with the corresponding section of the innerperipheral surface causes the deflectable portion to bend relative tothe central portion at the hinged connection, wherein the deflectableportion has a greater thickness than the central portion adjacent thehinged connection.
 19. The method of claim 18, wherein inserting theinsert into the cavity comprises pressing the insert into cavity suchthat the deflectable portion is urged against the corresponding sectionof the inner peripheral surface of the cavity and moves to the deflectedstate relative to the central portion.
 20. The method of claim 19,wherein after being inserted into the cavity, the deflectable portioncontacts the corresponding section of the inner peripheral surface ofthe cavity continuously along the entire length of the deflectableportion.
 21. The method of claim 19, wherein inserting the insert intothe cavity further comprises adhesively securing an inner surface of thecentral portion to the rear inner surface of the cavity.
 22. The methodof claim 19, wherein inserting the insert into the cavity does notdeform the central portion.